Siemens 6ES5373-1AA41 is a SIMATIC S5 memory module from the 373 CMOS-EPROM family, providing 32 KB of CMOS-EPROM storage for legacy S5 controllers. It is listed as a spare part by Siemens Industry Mall, described specifically as “SIMATIC S5, Memory module 373 CMOS-EPROM, 32 KB,” and Siemens notes the product was deleted without replacement. Designed for older SIMATIC S5 installations that require the 373 CMOS-EPROM memory, this module is discontinued and no longer offered as a current replacement.
